| jack oak | (n) small to medium deciduous oak of east central North America; leaves have sharply pointed lobes, Syn. Quercus ellipsoidalis, northern pin oak |
| blackjack oak | (n) a common scrubby deciduous tree of central and southeastern United States having dark bark and broad three-lobed (club-shaped) leaves; tends to form dense thickets, Syn. Quercus marilandica, jack oak, blackjack |
| bluejack oak | (n) small semi-evergreen shrubby tree of southeastern United States having hairy young branchlets and leaves narrowing to a slender bristly point, Syn. Quercus incana, turkey oak |